Incandescent-light attachment.



No. 852,121. PATENTED APR. 30, 1907. W. V. D. KELLEY. INGANDESCENT LIGHT ATTACHMENT.

APPLIGATION FILED JAH.6,1907.

the attachment UNITED STATES PATENT OFFICE.

W'ILLIAM V. D. KELLEY, OF NEWARK, NEW JERSEY, ASSIGNOR OF ON E-HALF TO HOWARD S. JONES, OF BROOKLYN, NEW YORK.

Specification of Letters Patent.

Patented A ril 30, 1907.

Application filed January 5. 1907. Serial No. 360,904.

1'0 all n-lwm if may concern.

Be it known that I, WILLIAM V. D. KEL- LEY, a citizen of the United States, residing at Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Incandescent-Light Attachments, of which the following is a. full, clear, and exact specification.

This invention relates to incandescent light attachments, and has particular reference to devices intended for use in connection with electric signs, whereby the effects from individual lights may be varied by substituting one transparency for another without changing the whole set of lamps.

Electric signs are commonly made up of a number of bulbs placed side by side which are viewed from the ends, and this invention relates to an attachment for such bulbs adapted to carry a lens or trans arency which can be used to intens' the gin; or produce varying color or reading efl'ects.

More particularly, the invention comprises a frame adapted for attachment at one end to the bulb itself, and having at the other end means for detachably holding a transparency, as a lens or other device which will vary the ordinary effect of the bare light.

The invention with respect to the preferred form thereof, is shown in the accompanying drawing, wherein Figure 1 shows an incandescent bulb having the attachment applied thereto and car- IVmg a lens; Fi 2 is a erspective view of ame; F 1g. 3 is an end view of Fig. 1, showing the lens; Fig. 4 shows a. sign letter made up of bulbs like Fig. 1, and Fig. 5, shows a transparency which may be substituted for the lens.

1 re resents an incandescent bulb adapted to be tilted in a socket, as 2, which in the case of a sign letter, will be carried in a kind of tro h 3 havin reflecting sides 4, of any usua and desire construction. These bulbs are commonly viewed end on, as seen in Fi 4.

In carrying out my invention, a. light frame 5, having resilient jaws 6 for clamping the bulb is used, and this frame has at the other end, jaws 7, adapted to hold a lens, as 8, (Fig. 3,) or other transparency, as 9, (Fig. 5,) which latter can carry lettering or other devices capable of being illuminated by the light 1.

10 is a ring carrying the jaws 6, 7 and is of somewhat less diameter than the largest diameter of the bulb, so that when the jaws 6 engage on one side of the large diameter, the ring acts as a stop on the other side, thus insuring a firm engagement of the frame with the bulb.

As will be seen, the transparency is some distance from the end of the bulb, so that an ailcirculation will be ermitted, and thereby prevent cracking of t e transparency by excessive heat from the bulb. As the jaws 6 spring over the bulb, the jaws 7 move on the lin as a pivot, inward, thus firmly engaging both the bulb and jaws 6, and the lens or other transparency and the j nws 7 In Fig. 4, is shown a sign letter formed of a number of bulbs, each having a lens 8, (or it might be some'other form of transparency, as 9.) Where the lenses are used, and particularly a. lens havin facets, as herein shown, a very brilliant e ect is obtained, and much ater than the bare lump. If now it be desired to cha e the sign, it can readily be done, either by dhanging the transparency in the holders, or by changing the holders and transparencies, such cha es not requir- 111% any changes in the bulbs t emselves. It wrl thus be possible to secure any desired effectsimply by changin the transparencies, while the holders will be inexpensive and will not interfere with the illumination, nor require any changes in existing sign constructions.

Modifications and changes may be made in the specific details herein shown without de arting from the scope of the invention.

iaving thus described my invention, I declare that what I claim as new and desire to secure by Letters Patent, is,-

l. The combination with an incandescent lamp, of a, frame having aws adapted to slide over the end of said am and engage the sides, means for limiting the movement of said frame on said lamp, and a transparency carried by jaws pivoted on said frame ant separated from the lamp, substantially as described.

2. The combination with an incandescent lamp. of a ring having a plurality of jaws ada )ted to frictionnlly engage said lamp, sail ring being smaller in diameter than the lamp so as to rest against the lamp bulb, and a. transparency supported by means carried by the ring out of contact with the lamp and scribed adapted to be illuminated by the lamp, sub- 1 stantially as described. 1 3. A frame for attachment to a lamp comi prising a ring adapted to bear against the surface of the bulb and carrying jmvs on one side for resiliently engaging the bulb, and up- Kositcly projecting jaws on the other side for olding a disk, transpa-rencw or the like out of contact with the lamp, substantially as de- 4. A frame for attachment to alamp comprising a ring adapted to beer on the surface of a lam bulb and carrying pivoted jaws frictionnll engagin the same, and oppositely pro ecting resilient {awe for holding a disk, transparency or the ike out of contactwith the lamp, said jaws being adapted to interact to clamp both the lamp bulb and the transparency, substantially as described.

5. A transparency for attachment to a lamp bulb comprising a transpnrencv removubly held by jaws carried byn rin g, and a. second set of jaws carried by the ring and adapted to engage a lamp bulb, substantinllv S 1 escribcd.

6. A transparency for attachment to a lump bulb comprising a transpnrene\ removably carried by a frame having jm-Z's, and u second set of jaws nda ted to engage a lamp bulb, said jaws being olh'esilient material and pivoted so as to move oppositely whereby to increase the holding effect on both the lamp and the transparency, substantiallv as de scribed. In testimony whereof I aflix my signature, in presence of two witnesses.

WILLLAM Vv D. KELLEY. Witnesses:

- JULIAN S. Woos'rER, Geo. A. Horne-m. 

